Table 7 EER of heat pump with cold water delivered at 7 °C and condenser in external air
From: Planned energy-efficient retrofitting of a residential building in Italy
| Frequency [Hz] | |||||
|---|---|---|---|---|---|
| T e [°C] | 110 | 90 | 70 | 50 | 30 |
| 20 | 4.78 | 5.22 | 5.43 | 5.34 | 4.62 |
| 25 | 4.08 | 4.45 | 4.63 | 4.56 | 3.98 |
| 30 | 3.48 | 3.8 | 3.96 | 3.92 | 3.45 |
| 35 | 2.97 | 3.24 | 3.39 | 3.36 | 3.00 |
